420165012056 has 8 divisors (see below), whose sum is σ = 787809397620. Its totient is φ = 210082506024.

The previous prime is 420165012053. The next prime is 420165012067. The reversal of 420165012056 is 650210561024.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420165012053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26260313246 + ... + 26260313261.

Almost surely, 2^420165012056 is an apocalyptic number.

It is an amenable number.

420165012056 is a deficient number, since it is larger than the sum of its proper divisors (367644385564).

420165012056 is a wasteful number, since it uses less digits than its factorization.

420165012056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52520626513 (or 52520626509 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 420165012056 in words is "four hundred twenty billion, one hundred sixty-five million, twelve thousand, fifty-six".